package mediainfo.jna;

import com.sun.jna.*;

import static java.util.Collections.singletonMap;


interface MediaInfoLibrary extends Library {

    MediaInfoLibrary INSTANCE =
            Native.load("mediainfo", MediaInfoLibrary.class, singletonMap(OPTION_FUNCTION_MAPPER, (FunctionMapper) (lib, method) -> {
                // MediaInfo_New(), MediaInfo_Open() ...
                return "MediaInfo_" + method.getName();
            }));


    /**
     * Create a new handle.
     *
     * @return handle
     */
    Pointer New();


    /**
     * Open a file and collect information about it (technical information and tags).
     *
     * @param handle
     * @param file   full name of the file to open
     * @return 1 if file was opened, 0 if file was not not opened
     */
    int Open(Pointer handle, WString file);


    /**
     * Configure or get information about MediaInfo.
     *
     * @param handle
     * @param option The name of option
     * @param value  The value of option
     * @return Depends on the option: by default "" (nothing) means No, other means Yes
     */
    WString Option(Pointer handle, WString option, WString value);


    /**
     * Get all details about a file.
     *
     * @param handle
     * @return All details about a file in one string
     */
    WString Inform(Pointer handle);


    /**
     * Get a piece of information about a file (parameter is a string).
     *
     * @param handle
     * @param streamKind   Kind of stream (general, video, audio...)
     * @param streamNumber Stream number in Kind of stream (first, second...)
     * @param parameter    Parameter you are looking for in the stream (Codec, width, bitrate...),
     *                     in string format ("Codec", "Width"...)
     * @param infoKind     Kind of information you want about the parameter (the text, the measure,
     *                     the help...)
     * @param searchKind   Where to look for the parameter
     * @return a string about information you search, an empty string if there is a problem
     */
    WString Get(Pointer handle, int streamKind, int streamNumber, WString parameter, int infoKind, int searchKind);


    /**
     * Get a piece of information about a file (parameter is an integer).
     *
     * @param handle
     * @param streamKind   Kind of stream (general, video, audio...)
     * @param streamNumber Stream number in Kind of stream (first, second...)
     * @param parameter    Parameter you are looking for in the stream (Codec, width, bitrate...),
     *                     in integer format (first parameter, second parameter...)
     * @param infoKind     Kind of information you want about the parameter (the text, the measure,
     *                     the help...)
     * @return a string about information you search, an empty string if there is a problem
     */
    WString GetI(Pointer handle, int streamKind, int streamNumber, int parameterIndex, int infoKind);


    /**
     * Count of streams of a stream kind (StreamNumber not filled), or count of piece of
     * information in this stream.
     *
     * @param handle
     * @param streamKind   Kind of stream (general, video, audio...)
     * @param streamNumber Stream number in this kind of stream (first, second...)
     * @return number of streams of the given stream kind
     */
    int Count_Get(Pointer handle, int streamKind, int streamNumber);


    /**
     * Close a file opened before with Open().
     *
     * @param handle
     */
    void Close(Pointer handle);


    /**
     * Dispose of a handle created with New().
     *
     * @param handle
     */
    void Delete(Pointer handle);

}
